微信聊天现在非常火，是因其界面漂亮吗，哈哈，也许吧。微信每条消息都带有一个气泡，非常迷人，看起来感觉实现起来非常难，其实并不难。下面小编给大家分享实现代码。

先给大家展示下实现效果图：

OK，下面我们来看一下整个小项目的主体结构：

下面是Activity的代码：

package com.way.demo;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ListView;

/**

* @author way

*/

public class WeixinChatDemoActivity extends Activity implements OnClickListener {

private Button mBtnSend;// 发送btn

private Button mBtnBack;// 返回btn

private EditText mEditTextContent;

private ListView mListView;

private ChatMsgViewAdapter mAdapter;// 消息视图的Adapter

private List mDataArrays = new ArrayList();// 消息对象数组

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

initView();// 初始化view

initData();// 初始化数据

mListView.setSelection(mAdapter.getCount() - 1);

}

/**

* 初始化view

*/

public void initView() {

mListView = (ListView) findViewById(R.id.listview);

mBtnSend = (Button) findViewById(R.id.btn_send);

mBtnSend.setOnClickListener(this);

mBtnBack = (Button) findViewById(R.id.btn_back);

mBtnBack.setOnClickListener(this);

mEditTextContent = (EditText) findViewById(R.id.et_sendmessage);

}

private String[] msgArray = new String[] { "有大吗", "有！你呢？", "我也有", "那上吧",

"打啊！你放大啊！", "你TM咋不放大呢？留大抢人头啊？CAO！你个菜B", "2B不解释", "尼滚...",

"今晚去网吧包夜吧？", "有毛片吗？", "种子一大堆啊~还怕没片？", "OK,搞起！！" };

private String[] dataArray = new String[] { "2012-09-22 18:00:02",

"2012-09-22 18:10:22", "2012-09-22 18:11:24",

"2012-09-22 18:20:23", "2012-09-22 18:30:31",

"2012-09-22 18:35:37", "2012-09-22 18:40:13",

"2012-09-22 18:50:26", "2012-09-22 18:52:57",

"2012-09-22 18:55:11", "2012-09-22 18:56:45",

"2012-09-22 18:57:33", };

private final static int COUNT = 12;// 初始化数组总数

/**

* 模拟加载消息历史，实际开发可以从数据库中读出

*/

public void initData() {

for (int i = 0; i < COUNT; i++) {

ChatMsgEntity entity = new ChatMsgEntity();

entity.setDate(dataArray[i]);

if (i % 2 == 0) {

entity.setName("肖B");

entity.setMsgType(true);// 收到的消息

} else {

entity.setName("必败");

entity.setMsgType(false);// 自己发送的消息

}

entity.setMessage(msgArray[i]);

mDataArrays.add(entity);

}

mAdapter = new ChatMsgViewAdapter(this, mDataArrays);

mListView.setAdapter(mAdapter);

}

@Override

public void onClick(View v) {

switch (v.getId()) {

case R.id.btn_send:// 发送按钮点击事件

send();

break;

case R.id.btn_back:// 返回按钮点击事件

finish();// 结束,实际开发中，可以返回主界面

break;

}

}

/**

* 发送消息

*/

private void send() {

String contString = mEditTextContent.getText().toString();

if (contString.length() > 0) {

ChatMsgEntity entity = new ChatMsgEntity();

entity.setName("必败");

entity.setDate(getDate());

entity.setMessage(contString);

entity.setMsgType(false);

mDataArrays.add(entity);

mAdapter.notifyDataSetChanged();// 通知ListView，数据已发生改变

mEditTextContent.setText("");// 清空编辑框数据

mListView.setSelection(mListView.getCount() - 1);// 发送一条消息时，ListView显示选择最后一项

}

}

/**

* 发送消息时，获取当前事件

*

* @return 当前时间

*/

private String getDate() {

SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");

return format.format(new Date());

}

}

ListView的代码：

package com.way.demo;

import java.util.List;

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.TextView;

/**

* 消息ListView的Adapter

*

* @author way

*/

public class ChatMsgViewAdapter extends BaseAdapter {

public static interface IMsgViewType {

int IMVT_COM_MSG = 0;// 收到对方的消息

int IMVT_TO_MSG = 1;// 自己发送出去的消息

}

private static final int ITEMCOUNT = 2;// 消息类型的总数

private List coll;// 消息对象数组

private LayoutInflater mInflater;

public ChatMsgViewAdapter(Context context, List coll) {

this.coll = coll;

mInflater = LayoutInflater.from(context);

}

public int getCount() {

return coll.size();

}

public Object getItem(int position) {

return coll.get(position);

}

public long getItemId(int position) {

return position;

}

/**

* 得到Item的类型，是对方发过来的消息，还是自己发送出去的

*/

public int getItemViewType(int position) {

ChatMsgEntity entity = coll.get(position);

if (entity.getMsgType()) {//收到的消息

return IMsgViewType.IMVT_COM_MSG;

} else {//自己发送的消息

return IMsgViewType.IMVT_TO_MSG;

}

}

/**

* Item类型的总数

*/

public int getViewTypeCount() {

return ITEMCOUNT;

}

public View getView(int position, View convertView, ViewGroup parent) {

ChatMsgEntity entity = coll.get(position);

boolean isComMsg = entity.getMsgType();

ViewHolder viewHolder = null;

if (convertView == null) {

if (isComMsg) {

convertView = mInflater.inflate(

R.layout.chatting_item_msg_text_left, null);

} else {

convertView = mInflater.inflate(

R.layout.chatting_item_msg_text_right, null);

}

viewHolder = new ViewHolder();

viewHolder.tvSendTime = (TextView) convertView

.findViewById(R.id.tv_sendtime);

viewHolder.tvUserName = (TextView) convertView

.findViewById(R.id.tv_username);

viewHolder.tvContent = (TextView) convertView

.findViewById(R.id.tv_chatcontent);

viewHolder.isComMsg = isComMsg;

convertView.setTag(viewHolder);

} else {

viewHolder = (ViewHolder) convertView.getTag();

}

viewHolder.tvSendTime.setText(entity.getDate());

viewHolder.tvUserName.setText(entity.getName());

viewHolder.tvContent.setText(entity.getMessage());

return convertView;

}

static class ViewHolder {

public TextView tvSendTime;

public TextView tvUserName;

public TextView tvContent;

public boolean isComMsg = true;

}

}

消息对象的代码：

package com.way.demo;

/**

* 一个消息的JavaBean

*

* @author way

*

*/

public class ChatMsgEntity {

private String name;//消息来自

private String date;//消息日期

private String message;//消息内容

private boolean isComMeg = true;// 是否为收到的消息

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getDate() {

return date;

}

public void setDate(String date) {

this.date = date;

}

public String getMessage() {

return message;

}

public void setMessage(String message) {

this.message = message;

}

public boolean getMsgType() {

return isComMeg;

}

public void setMsgType(boolean isComMsg) {

isComMeg = isComMsg;

}

public ChatMsgEntity() {

}

public ChatMsgEntity(String name, String date, String text, boolean isComMsg) {

super();

this.name = name;

this.date = date;

this.message = text;

this.isComMeg = isComMsg;

}

}

以上所述是小编给大家分享的Android高仿微信聊天界面代码分享，希望对大家有所帮助。